Add assertion stubs and unit tests

MultiversalDiplomacy/Script/AdjudicationQueryScriptHandler.cs

@@ -17,7 +17,7 @@ public class AdjudicationQueryScriptHandler(World world, bool strict = false) :
 
     public IScriptHandler? HandleInput(string input)
     {
-        var args = input.Split(' ', StringSplitOptions.RemoveEmptyEntries);
+        var args = input.Split(' ', 2, StringSplitOptions.RemoveEmptyEntries);
         if (args.Length == 0 || input.StartsWith('#'))
         {
             return this;
@@ -35,16 +35,8 @@ public class AdjudicationQueryScriptHandler(World world, bool strict = false) :
                 break;
 
             case "assert":
-                string assertion = input["assert ".Length..];
-                Regex prov = new($"{World.Map.ProvinceRegex} (.*)");
-                Match match = prov.Match(assertion);
-                if (!match.Success) {
-                    Console.WriteLine($"Could not parse province from \"{assertion}\"");
-                    return Strict ? null : this;
-                }
-                // TODO look up order once orders are validated and adjudicated
-                Console.WriteLine("Order lookup not implemented yet");
-                return null;
+                if (!EvaluateAssertion(args[1])) return Strict ? null : this;
+                break;
 
             case "status":
                 throw new NotImplementedException();
@@ -57,4 +49,49 @@ public class AdjudicationQueryScriptHandler(World world, bool strict = false) :
 
         return this;
     }
+
+    private bool EvaluateAssertion(string assertion)
+    {
+        var args = assertion.Split(' ', 2, StringSplitOptions.RemoveEmptyEntries);
+
+        switch (args[0])
+        {
+            case "true":
+                return true;
+
+            case "false":
+                return false;
+
+            case "order-valid":
+                // Assert order was valid
+
+            case "order-invalid":
+                // Assert order was invalid
+
+            case "has-past":
+                // Assert a timeline's past
+
+            case "holds":
+                // Assert a unit successfully held
+
+            case "dislodged":
+                // Assert a unit was dislodged
+
+            case "moves":
+                // Assert a unit successfully moved
+
+            case "no-move":
+                // Assert a unit did not move
+
+            case "supports":
+                // Assert a unit's support was given
+
+            case "cut":
+                // Assert a unit's support was cut
+
+            default:
+                Console.WriteLine($"Unknown assertion \"{args[0]}\"");
+                return !Strict;
+        }
+    }
 }

MultiversalDiplomacyTests/ReplDriver.cs

@@ -16,7 +16,7 @@ public class ReplDriver(IScriptHandler initialHandler, bool echo = false)
     bool Echo { get; } = echo;
 
     /// <summary>
-    /// Input a multiline string into the repl. Call <see cref="Ready"/> or <see cref="Closed"/> at the end so the
+    /// Input a multiline string into the repl. Call <see cref="AssertReady"/> or <see cref="AssertClosed"/> at the end so the
     /// statement is valid.
     /// </summary>
     public ReplDriver this[string input] => ExecuteAll(input);
@@ -39,13 +39,13 @@ public class ReplDriver(IScriptHandler initialHandler, bool echo = false)
         return this;
     }
 
-    public void Ready()
+    public void AssertReady()
     {
-        Assert.That(Handler, Is.Not.Null, "Handler is closed");
+        if (Handler is null) Assert.Fail($"Handler terminated after \"{LastInput}\"");
     }
 
-    public void Closed()
+    public void AssertClosed()
     {
-        Assert.That(Handler, Is.Null, "Handler is not closed");
+        if (Handler is not null) Assert.Fail($"Handler did not terminate after \"{LastInput}\"");
     }
 }

MultiversalDiplomacyTests/ReplTest.cs

@@ -8,17 +8,19 @@ namespace MultiversalDiplomacyTests;
 
 public class ReplTest
 {
+    private static ReplDriver StandardRepl() => new(
+        new SetupScriptHandler(World.WithStandardMap(), strict: true));
+
     [Test]
     public void SetupHandler()
     {
-        SetupScriptHandler setup = new(World.WithStandardMap(), strict: true);
-        ReplDriver repl = new(setup);
+        var repl = StandardRepl();
 
         repl["""
         unit Germany A Munich
         unit Austria Army Tyrolia
         unit England F Lon
-        """].Ready();
+        """].AssertReady();
 
         Assert.That(repl.Handler, Is.TypeOf<SetupScriptHandler>());
         SetupScriptHandler handler = (SetupScriptHandler)repl.Handler!;
@@ -29,7 +31,7 @@ public class ReplTest
 
         repl["""
         ---
-        """].Ready();
+        """].AssertReady();
 
         Assert.That(repl.Handler, Is.TypeOf<GameScriptHandler>());
     }
@@ -37,20 +39,18 @@ public class ReplTest
     [Test]
     public void SubmitOrders()
     {
-        SetupScriptHandler setup = new(World.WithStandardMap(), strict: true);
-        ReplDriver repl = new ReplDriver(setup)["""
+        var repl = StandardRepl();
+
+        repl["""
         unit Germany A Mun
         unit Austria A Tyr
         unit England F Lon
-        begin
-        """];
-
-        repl["""
+        ---
         Germany A Mun hold
         Austria: Army Tyrolia - Vienna
         England:
         Lon h
-        """].Ready();
+        """].AssertReady();
 
         Assert.That(repl.Handler, Is.TypeOf<GameScriptHandler>());
         GameScriptHandler handler = (GameScriptHandler)repl.Handler!;
@@ -64,11 +64,201 @@ public class ReplTest
 
         repl["""
         ---
-        """].Ready();
+        """].AssertReady();
 
         Assert.That(repl.Handler, Is.TypeOf<AdjudicationQueryScriptHandler>());
         var newHandler = (AdjudicationQueryScriptHandler)repl.Handler!;
         Assert.That(newHandler.World, Is.Not.EqualTo(before));
         Assert.That(newHandler.World.Timelines.Pasts.Count, Is.EqualTo(2));
     }
+
+    [Test]
+    public void AssertBasic()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit Germany A Munich
+        ---
+        ---
+        assert true
+        """].AssertReady();
+
+        repl["assert false"].AssertClosed();
+    }
+
+    [Test]
+    public void AssertInvalidOrder()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit Germany A Mun
+        ---
+        Germany A Mun - Mars
+        ---
+        """].AssertReady();
+
+        // Assertion should pass for an invalid order
+        repl["assert order-invalid Mun"].AssertReady();
+        // Assertion should fail for an invalid order
+        repl["assert order-valid Mun"].AssertClosed();
+    }
+
+    [Test]
+    public void AssertValidOrder()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit Germany A Mun
+        ---
+        Germany A Mun - Tyr
+        ---
+        """].AssertReady();
+
+        // Assertion should pass for a valid order
+        repl["assert order-valid Mun"].AssertReady();
+        // Assertion should fail for a valid order
+        repl["assert order-invalid Mun"].AssertClosed();
+    }
+
+    [Test]
+    public void AssertSeasonPast()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit England F London
+        ---
+        ---
+        """].AssertReady();
+
+        // Assertion should pass for a season's past
+        repl["assert has-past a1>a0"].AssertReady();
+        // Assertion should fail for an incorrect past
+        repl["assert has-past a0>a1"].AssertClosed();
+    }
+
+    [Test]
+    public void AssertHolds()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit Germany A Mun
+        unit Austria A Tyr
+        ---
+        Germany Mun - Tyr
+        ---
+        """].AssertReady();
+
+        // Assertion should pass for a repelled move
+        repl["assert holds Tyr"].AssertReady();
+        // Assertion should fail for a repelled move
+        repl["assert dislodged Tyr"].AssertClosed();
+    }
+
+    [Test]
+    public void AssertDislodged()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit Germany A Mun
+        unit Germany A Boh
+        unit Austria A Tyr
+        ---
+        Germany Mun - Tyr
+        Germany Boh s Mun - Tyr
+        ---
+        """].AssertReady();
+
+        // Assertion should pass for a dislodge
+        repl["assert dislodged Tyr"].AssertReady();
+        // Assertion should fail for a repelled move
+        repl["assert holds Tyr"].AssertClosed();
+    }
+
+    [Test]
+    public void AssertMoves()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit Germany A Mun
+        ---
+        Germany Mun - Tyr
+        ---
+        """].AssertReady();
+
+        // Assertion should pass for a move
+        repl["assert moves Mun"].AssertReady();
+        // Assertion should fail for a successful move
+        repl["assert no-move Mun"].AssertClosed();
+    }
+
+    [Test]
+    public void AssertRepelled()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit Germany A Mun
+        unit Austria A Tyr
+        ---
+        Germany Mun - Tyr
+        ---
+        """].AssertReady();
+
+        // Assertion should pass for a repelled move
+        repl["assert no-move Mun"].AssertReady();
+        // Assertion should fail for no move
+        repl["assert moves Mun"].AssertClosed();
+    }
+
+    [Test]
+    public void AssertSupports()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit Germany A Mun
+        unit Germany A Boh
+        unit Austria A Tyr
+        ---
+        Germany:
+        Mun - Tyr
+        Boh s Mun - Tyr
+        ---
+        """].AssertReady();
+
+        // `supports` and `cut` are opposites
+        repl["assert supports Boh"].AssertReady();
+        repl["assert cut Boh"].AssertClosed();
+    }
+
+    [Test]
+    public void AssertCutSupport()
+    {
+        var repl = StandardRepl();
+
+        repl["""
+        unit Germany A Mun
+        unit Germany A Boh
+        unit Austria A Tyr
+        unit Italy A Vienna
+        ---
+        Germany:
+        Mun - Tyr
+        Boh s Mun - Tyr
+
+        Italy Vienna - Boh
+        ---
+        """].AssertReady();
+
+        // `supports` and `cut` are opposites
+        repl["assert cut Boh"].AssertReady();
+        repl["assert supports Boh"].AssertClosed();
+    }
 }